Alpha Dog Series Magic Fence (10 Modular Pcs) 10 PIECE DOG SET MADE FROM THE ALPHA DOG SERIES PRODUCT MADE FROM STURDY PLASTIC MATERIAL THAT IS COMPLETELY ADJUSTABLE IN ANY WAY YOU'D LIKE IDENTICAL BLOCKS OF 10 IN 1 SET. ONCE YOU INSERT THE BLOCKS AND ATTACH IT TO EACH OTHER, THE BLOCKS WON'T EASILY FALL OUT AND IT WILL BE STURDY EVEN THOUGH IT IS PLASTIC WEIGHT OF PRODUCT: 370g X 10 = 3.7kg or ~8lbs